Automatic time switch clock



Aug. 29, 1939. -rm 2,171,370

AUTOMATIC TIME SWITCH CLOCK Filed Nov. 22, 1938 INVEP ro Adrian13441-2122.

ATTORNEY Patented Aug. 29, 1939 UNITED STATES PATENT OFFICE 8 Claims.

This invention relates to new and useful improvements in an automaticswitch clock.

More specifically, the invention relates to an improved automatic switchclock characterized by the provision of separate mechanisms controlledby a conventional clock mechanism for closing an electrical circuit at apredetermined time and for opening the electrical circuit at apredetermined time.

Still further the invention proposes the construction of an on cyclemechanism of a particular construction associated with the clockmechanism in a particular manner to cause the electrical circuit to becompleted when the clock mechanism reaches a predetermined time.

Another object of this invention is the provision of an off cyclemechanism connected with the clock mechanism in a particular manner toopen the circuit when the clock mechanism reaches a predetermined time.

A further object of this invention is to characterize each of the cyclemechanisms with a shaft rotatively and slidably mounted through theframe of a clock and which projects from the face side thereof and has aspindle mounted thereon and extended to the interior of said clock in aparticular manner to be used for setting specific times at which themechanisms are to open and close the said circuit.

Still further the invention proposes the provision of a pointer radiallymounted on said shaft and extended through a slot formed in said spindlein a particular manner to register on a calibrated scale formed on theface of the clock for setting the mechanism at the predetermined time.

Another object of this invention is the provision of a gear with a hubfreely mounted on said shaft to rotate and move longitudinally theronand having the free end of its hub in end contact with said spindle witha cam mounted on said shaft and engageable upon the end of said hub andinto a cut-out formed in said hub when said predetermined time isreached in a particular manner to permit the circuit to be opened orclosed.

A further object of this invention is the provision of associatedcontacts mounted on said gear and the face of the clock in a particularmanner to control the operation of said circuit in the differentlongitudinal positions of the gear.

Another object of this invention is the provision of a friction meansfor holding said shaft against rotating while the gear is being rotatedto reach said predetermined time to prevent said shaft from being turnedfrom said predetermined time.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a perspective view of a clock having an improved automaticswitch constructed according to this invention.

Fig. 2 is a vertical sectional view substantially on the line 2-2 ofFig. 1.

Fig. 3 is a horizontal sectional view on the line 3--3 of Fig. 2.

Fig. 4 is a sectional view of one of the clips per se.

Fig. 5 is a vertical sectional view through the on cycle mechanism shownon the right hand side of Fig. 2.

Fig. 6 is a sectional View on the line G6 of Fig. 2.

Fig. 7 is an enlarged detailed view on the line 1-1 of Fig. 2.

The improved automatic switch clock is to be used in conjunction with aclock including a housing I 0 consisting of a tubular side wall l0 andend walls I0 The end walls I!) are inserted into the ends of the tubularside wall l0 and are held in position by means of screws H which passtherethrough and threadedly engage brackets 12 mounted on the inner faceof the tubular side wall Ill The bottom end wall 10 is formed with aplurality of foot members I3 upon which the clock body rests and whichare held in position by means of screws [4.

The clock mechanism includes separate frame sections l5, l6 and I l. Theframe section 15 is attached to the inner face of the side walls m ofthe clock body by means of brackets [8 upon which the peripheral edge ofthe frame section 15 is rested. Screws 19 are passed through the framesection 15 and into the brackets l8 for maintaining the section inposition upon the said brackets. The frame section 16 is connected tothe frame section 15 by means of brackets 20 which are extended betweenthe adjacent faces thereof. Likewise, the frame section I! is connectedto the frame section I6 by means of brackets 2! which extend between theadjacent faces of these frame sections.

A clock face 22 is provided with a plurality of numerals 23 around theperipheral edge thereof which are adapted to be viewed through an 7opening it formed on one side of the side wall Ic The clock face isformed with an internal flange 23 which extends radially inwards and issuperimposed above the edge of the frame section if. A raceway 25 havinga plurality of ball bearings 26 is disposed between the adjacent facesof the flange 2i and the frame section II for rotatively supporting theclock face 22 upon the frame section 5?. The bottom wall of the clockface 22 is formed with a downwardly extending projection 2? whichextends into a cutout formed in a block 28 securely attached to thebottom end wall ifi of the clock body l8 by means of screws 29. v V H VThe superimposed faces of the projection 2? and the block 25 areprovided with a raceway 30 having ball bearings 3! to permit theprojection to turn freely upon the block28 This projection acts tocentrally locate the clock face 22 within the body id and to prevent thesame from swaying and being displaced from the frame section II.

A means is provided for driving the clock face 22 and includes a tube 32which extends through an opening formed in the frame section 55 andwhich has its bottom end resting on the top face of the frame sectionif. A gear 33 is mounted on the tube 32 intermediate of its ends. Thebottom end of the tube 2 is not attached to the frame H and merely restsfreely thereon. A shaft 35 has its upper end rotatively supported in abearing 36 attached to the bottom face of the frame section 5 6. Theother end of the shaft 35 passes freely through an opening formed in theframe section H. A conventional clock spring mechanism including acasing 3'! is mounted on the shaft 35 and has a clock spring, not shownon the drawing housed therein, as is customarily adapted to be wound byturning the shaft 35. A gear 33 is associated with the spring mechanismas is driven thereby and meshes with gear teeth 33 formed on the hub ofthe gear 33.

A large gear 39 has a hub 39 rotativeiy mounted on the tube 32 by pinsiii which engage in a peripheral groove 32 in the tube 32. The upper endof the hub 39 is formed with internal gear teeth which mesh with a smallpinion ii. This pinion 3! is mounted upon a spindle 2 which extendsthrough the tube 32 to the exterior of the clock body it through anopening formed in the top end wall l The bottom end of the spindle 42 isformed with a conical-shaped gear 43 which is engageable into aconical-shaped gear cutout M formed in a block 55 which is securelyattached to the center portion of the clock face 22.

When the device is in operation the spring contained within the casing37 will cause the gear 38 to be rotated, independently of the shaft 35and cause the gear 33 to be rotated. The gear 33 will then rotate thetube 32 which in turn will rotate the spindle 52 through the medium ofthe gear M to cause the clock face 22 to be rotated. The gear 33 isformed with gear teeth 33 which are adapted to mesh with a conventionalclock mechanism including an escapement not shown on the drawing, forpreventing the spring, not shown on the drawing, contained within thecasing 37 of the spring mechanism device from unwinding too rapidly tocause the clock face to be rotated at the proper rate of speed to moveone complete revolution every l2 hours. V

The upper end of the spindle 42 extends from the end of the clock bodyiii and isformed with a knob 46 formed with threads upon which a key 4'!is adapted to be engaged. The key :3? is provided for permitting thedevice to be wound when the spring contained within the spring mechanismbecomes unwound. When it is desired to wind the device the key i? isengaged on therknob 36 and the spindle 52 is pulled out wards,disengaging the gear ll from the internal gear teeth formed on he huband also disengaging the conical gear from the conical gear opening iformed in the block '35. A gear 48 is mounted on the lower end of thespindle 42 above the conical-shaped gear 3 5 and adapted to mesh with acomplementary gear 59 mounted on the lower end of the shaft 35 when thespindle 42 is moved outwards.

A means is provided for holding the spindle in its pulled out positionand comprises a grooved wheel 59 which is mounted upon an intermediateportion of the spindle 612 which is adapted to be snapped into a pair ofclips when the spindle is urged outwards. These clips comprise hollowbodies 5i which are mounted upon the bottom face of the frame section55. Half circular elements 52 extend from the ends of the bodies 51 andare engageable into the peripheral groove 5-3 in the wheel 56 when thespindle is moved upwards.

Springs 5-3 are located within the bodies 5i and urge the half circularelements into their extended positions. The half circular elements 52are formed with flanges 52 located within the bodies and which preventthe elements 52 from being completely urged out of the bodies 55 by thesprings 53. Thus when the spindle :32 is moved outwards and the wheelii!) is engaged into the clips it will maintain the gears 33 and 59 inan inter-engaged position for causing the shaft 2 to be rotatedindependently of the tube 32 for turning the shaft 35 when the key i?rotated.

A ratchet wheel St is mounted upon the shaft 35 and is engageable by apawl 55 which permits the shaft 35 to be rotated independentiy of thecasing 31 and the gear 38 for winding the spring contained within thecasing The casing 31 of the spring mechanism is supported on a bracket31 for preventing the spring from unwinding when the gears i8 and 59 aredisconnected. After the winding operation is completed the spindle 42 isagain urged inwards to disconnect the gears 38 and and return the gearsGI and 63 to their normal positions to cause the clock face 22 to berotated by the clock mechanism.

There is an on cycle and an off cycle associated with the clockmechanism to cause an electrical circuit to be completed at apredetermined time and to cause the same electrical circuit to be openedat another predetermined time. The on cycle mechanism comprises a shaft2% rotatively extended through openings formed in the frame sections i8,i5 and the top wall 56* of the clock body iii. A spindle 57 is mountedon the extended end of the shaft 56 and is extended into the clockthrough an opening formed in the end wall it and rotatively extendsthrough an opening formed in the frame: section l5. A pointer 53 extendsthrough a lcngitudinal slot 5% formed in the spindle and has its innerend mounted on the shaft 56 for locking these parts for unitary turning.

Furthermore, the pointer 58 extends over a calibrated scale 59 formed onthe outer face of the end wall ifi for permitting the shaft 55 to bemoved to a predetermined time at which it is desired to complete theelectrical circuit.

A gear 66 having a hub 63 is freely mounted on the shaft 56 to rotateand move longitudinally thereon and has the free end of the hub 66 incontact with the end of the spindle 51 as shown in Fig. 5. A cam i5! ismounted on the shaft 513 and extends into a longitudinal slot 60 formedin the hub MP of the gear 68 to lock the shaft 56 and the hub 68together for unitary turning in the closed position of the circuit. Thecam 51 is engageable when the spindle 51 is moved longitudinallyinwards, into a short longitudinal slot 57 formed in the inner end ofthe spindle 51; and in turning the spindle, the cam 5|, when locatedwithin the slot 57*, will ride on the upper end of the hub 66* forholding the on mechanism in position in which the circuit will be openeduntil the predetermined time is reached permitting the cam to engageinto the slot 69 for closing the said circuit.

A resilient means is provided for urging the gear '69 outwards tomaintain the end of the hub in contact with the end of the spindle 51.This means comprises a spring 62 coam'ally mounted upon a portion of theshaft 56 and which operates between the adjacent faces of the gear 65and the frame section 16. I

Associated contacts are mounted on the gear 60 and the frame of theclock to control the closing of the circuit in the differentlongitudinal positions of the gear 50. In the on cycle mechanism theassociated contacts comprise a discshaped contact member 53 which isprovided with a centrally located opening 33 through which the spring 52and the end of the shaft 56 extend. The top face of the disc-shapedcontact 53 is provided with a pair of upwardly extending arms 64 whichpass through and are fixedly maintained in positions by means offriction insulation members 65 constructed of rubber or other similarmaterial and mounted upon the gear 65. The upper ends of the arms 64 areprovided with contact members 534 which are adapted to engage a contact36 when the gear B3 is urged upwards by means of the spring 82 forcompleting the circuit.

The electrical circuit 67 has a lead 61* which is connected to a pin 68mounted on the frame section it and insulated therefrom by means of aninsulation member 69. A leaf spring H1 is also mounted on the pin 68 andengages the bottom face of the contact $3 in all of its adjustedpositions for completing the circuit 61 at this point. The currentpasses from the spring '10 through the plate 33 and the arm 64 to thecontact 66 when the gear -36 is moved upwards. A lead 6! extends fromthe contact 56 to the "off cycle which will be described in detailhereinafter. The contact 56 is mounted on the frame section i and isinsulated therefromby means of an insulation member 58 which isinterposed between the adjacent faces thereof.

The frame section it has a friction member H3 mounted upon the bottomface thereof and through which the shaft 55 extends. The bottom face ofthe friction member 10 is formed with an inwardly extendingconical-shaped opening m. A friction element H is mounted on the bottomend of the shaft 55 and is maintained in position thereon by means of anut 72 and is engageable into the conical-shaped opening when the cam 6iis resting on the end of the hub Eli to prevent the shaft 56 fromturning with the gear 58 until the cam 35 engages into the cutout 60When the cam 6i engages into the cutout 6t) the shaft 56 moves downwardsto disengage the friction elements II from the opening 18 to free theshaft so that it may rotate with the gear 60.

The gear 60 is connected to the gear 39 through the medium of a gear 13which is mounted on the top face of the frame section I6 by means of apin 74. A gear 32 is fixedly mounted on the tube 32 and meshes with apinion I3 freely mounted on the pin M below the gear 73. A pawl l3operates between the gears '53 and T3 to cause them to be rotated inunison to rotate the gear 39 which in turn will rotate the spindle 42through the medium of the gear 4| to rotate the clock face 22.

The operation of the on cycle is as follows:

The spindle 57 is manually urged downwards causing the pointer 58 to berested upon the face of the end section Ill for preventing the shaft 56from moving inwards. This movement of the spindle 5! causes the gear 5%to be moved downwards compressing the spring 62 and moving the arms E4downwards to break the contact between the members 6 1 and the contact65. This movement of the spindle 51 causes the cam 63 to move out of thecutout 65 into the cutout 51 in the bottom end of the spindle 5?. Thisfrees the shaft 56 from the gear 65 permitting the same to be rotated tocause the cam 6! to ride upon the top end of the hub 69 The pointer 53is then rotated to the desired position at the time it is desired tohave the circuit completed by aligning it with the proper hour numeralof the calibrated scale 59.

It will be noted that the pointer 58 and the cam G! are in superimposedpositions one above the other upon the shaft 56 so that the cam 62 willassume the same position with relation to the Scale 59 as the pointer58. When the spindle 57 is released after the desired time position hasbeen reached the spring 62 will urge the gears 60 upwards and becausethe cam 6| is resting on the upper end of the hub 60 formed on the gear60, the shaft 55 will be urged outwards to cause the friction elementsif to be engaged into the opening l'il formed in the friction member if!for preventing the shaft 55 from rotating when the gear 60 is rotatedthrough the medium of the gear 13.

When the cutout 60 reaches the predetermined time, indicated by thepointer 58, the cam 6| will engage into the cutout 65 permitting thegear (50 and the spindle 571 to be moved upwards by means of the spring32 to complete the electrical circuit and permit the shaft 56 and thespindle 51 to rotate with the gear Bil to maintain the circuit in itsclosed position.

The off cycle for opening the electrical circuit when a predeterminedtime is reached is similar to the on cycle mechanism except that thecontacts are at the lower part of the device and are open when thedevice operates. In the on cycle mechanism the contacts are located atthe top of the device and close the circuit when the gear 58 and hub(ill move upwards.

To hand set the clock face 22 to indicate the proper time the key 3? isremoved from the knob 45 and the spindle 42 is urged inwards to engagethe gear 43 into the cutout 84 so that when the knob 46 is rotated itwill cause the clock face 22 to be rotated to align the proper timenumeral 23 with the cutout [B formed in the body ID. This rotation ofthe spindle 42 must be in a direction which will permit the gears 13 and95 to rotate past the pawls 13 and 9| permitting the gears l3 and 9! toremain still.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by United States Letters Patent is:

i. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its 1' hub inend contact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and engageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in the ofsaid clock and projecting from the face side of the clock, a spindlemounted on the extended end of said shaft and extending into said clock,a pointer radially mounted on said shaft and extending through alongitudinal slot in said spindle to lock these parts for unitaryturning and furthermore extending over a calibrated scale on the face ofthe clock, a gear with a hub freely mounted on said shaft to rotate andmove longitudinally and having the free end of its hub in end contactwith said spindle, a cam mounted on said shaft and extending into alongitudinal slot in said hub to lock these parts for unitary turningand engageable when said spindleis moved longitudinally inwards into ashort longi tudinal slot in the inner end of said spindle and in 9.turned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, saidcam and said pointer being mounted in superimposed positions upon saidshaft for causing said cam and said pointer to move in unison so thatsaid cam will assume an adjusted position with relation to saidcalibrated scale similar to that assumed by the pointer.

3. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its hub in endcontact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and engageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock, and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, saidgear being connected with the clock mechanism in a manner to cause saidgear to be rotated for aligning the cutout therein with said cam whensaid cutout reaches the predetermined position similar to the setting ofsaid pointer.

4. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its hub in endcontact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and engageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock, and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, saidautomatic switch being characterized by an on cycle for causing saidcircuit to be completed when said predetermined position is reached, andan off cycle for causing said circuit to be broken when saidpredetermined position is reached.

5. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended (iii end of said shaft andextending into said clock, a pointer radially mounted on said shaft andextending through a longitudinal slot in said spindle to lock theseparts for unitary turning and furthermore extending over a calibratedscale on the face of the clock, a gear with a hub freely mounted on saidshaft to rotate and move longitudinally and the free end of its hub inend contact with spindle, a cam mounted on said shaft and extending intoa longitudinal slot in said hub to lock these parts for unitary turningand engageable when said spindle is moved longitudinally inwards into ashort longitudinal slot in the inner end of said spindle and in a turnedposition of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock, and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, saidautomatic switch being characterized by an on cycle for causing saidcircuit to be completed when said predetermined position is reached, andan off cycle for causing said circuit to be broken when saidpredetermined position is reached, said automatic contacts of said oncycle comprising a discshaped contact supported upon said gear andhaving arms extending through said gear and insulated therefrom, aspring mounted upon a portion of said clock and engageable against oneface thereof in all of the adjusted positions of said gear, and contactelements formed on the upper ends of said arms, a contact mounted onsaid clock and above said gear and adapted to be contacted by saidcontact members when said gear is moved upward by the use of said springwhen said cam engages the cutouts in said hub.

6. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its hub in endcontact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and en ageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock, and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, saidautomatic switch being characterized by an on cycle for causing saidcircuit to be completed when said predetermined position is reached, andan off cycle for causing said circuit to be broken when saidpredetermined position is reached, said contact members for said offcycle mechanism comprising a discshaped contact member, upwardlyextending arms mounted on one of the faces of said contact member andextending through insulation members formed on said gear for connectingsaid contact plate to said gear, a stop element on said clock above saidgear and against which said arms are adapted to abut for limiting upwardmovement of said gear, and contact members mounted on said clock andengageable by said contact member, when said cam engages on the end ofsaid hub.

'7. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its hub in endcontact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and engageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of the clock, and a friction element mounted on said shaftand engaging said friction member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, andmeans for permitting the clock mechanism to be wound for driving saidgear.

8. In combination with a clock, a shaft rotatively and slidably mountedthrough the frame of said clock and projecting from the face side of theclock, a spindle mounted on the extended end of said shaft and extendinginto said clock, a pointer radially mounted on said shaft and extendingthrough a longitudinal slot in said spindle to lock these parts forunitary turning and furthermore extending over a calibrated scale on theface of the clock, a gear with a hub freely mounted on said shaft torotate and move longitudinally and having the free end of its hub in endcontact with said spindle, a cam mounted on said shaft and extendinginto a longitudinal slot in said hub to lock these parts for unitaryturning and engageable when said spindle is moved longitudinally inwardsinto a short longitudinal slot in the inner end of said spindle and in aturned position of the spindle engageable on the top edge of said hub,resilient means urging said gear outwards, associated contacts mountedon said gear and the frame of the clock to control a circuit in thedifferent longitudinal positions of said gear, a friction member mountedon the frame of, the clock, and a friction element mounted on said shaftand engaging said fricnon member in a position of said shaft when saidcam is on the edge of the hub for holding the shaft non-rotative, andmeans for permitting the clock mechanism to be wound for driving saidgear, said means comprising a spindle having one of its ends extendedinto said clock and the other of, its ends extended from said clock,said end contained within said clock having a gear mounted thereon, ashaft rotatively supported within said clock, a clock spring devicemounted on said shaft, a gear mounted on one end of said shaft device.

and engageable with said gear, and a key engageable on the extended endof said spindle for r0- tating said spindle to correspondingly rotatesaid shaft to wind the spring contained within said ADRIAN MARTIN.

